CVE-2026-20436: Medium severity MediaTek Nbiot Sdk vulnerability
Published Mar 2, 2026
·Updated
In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00473802; Issue ID: MSV-5970.
Affected Software
8 affected components
All of the following
MediaTek Nbiot Sdk<=3.8
Any of the following
MediaTek Mt7902
MediaTek Mt7920
MediaTek Mt7921
MediaTek Mt7922
MediaTek Mt7925
MediaTek Mt7927
MediaTek Mt8696
Event History
Mar 2, 2026
CVE Published
via MITRE·08:39 AM
Data Sourced
via MITRE·08:39 AM
DescriptionWeakness
Data Sourced
via NVD·09:16 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-20436?
CVE-2026-20436 has a high severity due to the potential for local escalation of privilege.
2
How do I fix CVE-2026-20436?
To fix CVE-2026-20436, apply the patch ID WCNCR00473802 provided by MediaTek.
3
Which devices are affected by CVE-2026-20436?
CVE-2026-20436 affects devices running MediaTek NBIOT SDK versions up to 3.8.
4
Can CVE-2026-20436 be exploited remotely?
No, CVE-2026-20436 requires that the attacker already has system privileges to exploit it.
5
Is user interaction required to exploit CVE-2026-20436?
No, user interaction is not needed for the exploitation of CVE-2026-20436.